#include<stdio.h>
#include<stdlib.h>

typedef struct Linked
{
    int a;
    int b;
    int c;
    struct Linked* next;
}Link;

int main()
{
    Link pa;
    printf("%d\n",pa.next);
    Link *pb=(Link*)malloc(sizeof(Link));
    printf("%d\n",pb->next);
}
